/* ============================================================
   I Seg Vial Extintores — Estilos
   Mobile First · CSS Variables · Flexbox + Grid
   ============================================================ */

:root {
  --rojo: #C8102E;
  --rojo-oscuro: #9E0C24;
  --gris-oscuro: #1F2933;
  --gris: #4A5568;
  --gris-claro: #E2E8F0;
  --blanco: #FFFFFF;
  --fondo-alt: #F7F9FC;
  --sombra: 0 8px 24px rgba(31, 41, 51, 0.10);
  --radio: 12px;
  --maxw: 1140px;
  --font: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

/* ===== Señalización de Seguridad e Higiene ===== */
.sig-banner { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; background: #7a0c1c; padding: 20px; border-radius: var(--radio); margin-bottom: 28px; }
.sig-banner img { width: 74px; height: 74px; background: #fff; border-radius: 14px; padding: 6px; box-shadow: 0 2px 8px rgba(0,0,0,.25); }
.sig-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin: 8px 0 22px; align-items: stretch; }
.sig-card { background: #fff; border: 1px solid var(--gris-claro); border-radius: var(--radio); padding: 18px; text-align: center; box-shadow: var(--sombra); display: flex; flex-direction: column; align-items: center; }
.sig-card img { width: 72px; height: 72px; margin: 0 auto 12px; display: block; }
.sig-card h4 { margin: 0 0 6px; font-size: 1rem; color: var(--gris-oscuro); }
.sig-card p { margin: 0; font-size: .85rem; color: var(--gris); }
.sig-note { font-size: .82rem; color: var(--gris); margin: 0 0 18px; }
.sig-info { margin: 0 0 24px; text-align: center; }
.sig-info img { max-width: 360px; width: 100%; height: auto; border-radius: var(--radio); box-shadow: var(--sombra); }
.sig-info figcaption { font-size: .8rem; color: var(--gris); margin-top: 8px; }

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--gris-oscuro);
  background: var(--blanco);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--rojo); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.2; color: var(--gris-oscuro); margin: 0 0 .5em; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Botones ===== */
.btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  text-align: center;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform .15s ease, background .15s ease, color .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn-primary { background: var(--rojo); color: #fff; }
.btn-primary:hover { background: var(--rojo-oscuro); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.7); }
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn-outline { background: #fff; color: var(--rojo); border-color: var(--rojo); }
.btn-outline:hover { background: var(--rojo); color: #fff; }
.btn-block { width: 100%; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--gris-claro);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--gris-oscuro); }
.brand:hover { text-decoration: none; }
.brand-logo { width: 53px; height: 53px; object-fit: contain; }
.brand-text { font-size: 1.05rem; line-height: 1; }
.brand-text small { display: block; font-size: .7rem; font-weight: 600; color: var(--gris); }

.site-nav { display: none; gap: 22px; align-items: center; }
.site-nav a { color: var(--gris-oscuro); font-weight: 600; font-size: .95rem; }
.site-nav a:hover { text-decoration: none; color: var(--rojo); }
.nav-cta { background: var(--rojo); color: #fff !important; padding: 8px 18px; border-radius: 999px; }
.nav-cta:hover { background: var(--rojo-oscuro); }

.nav-toggle {
  display: flex; flex-direction: column; gap: 5px;
  background: none; border: 0; cursor: pointer; padding: 8px;
}
.nav-toggle span { width: 24px; height: 3px; background: var(--gris-oscuro); border-radius: 2px; transition: .2s; }

/* ===== Hero (carrusel cinematográfico) ===== */
.hero {
  position: relative;
  background: var(--gris-oscuro);
  color: #fff;
  padding: 56px 0 64px;
  overflow: hidden;
  isolation: isolate;
}
.hero-slides { position: absolute; inset: 0; z-index: -2; }
.hero-slide {
  position: absolute; inset: 0;
  background-repeat: no-repeat;
  background-color: var(--gris-oscuro);
  background-size: cover; background-position: center;
  opacity: 0; transform: scale(1.04);
  transition: opacity 1.1s ease, transform 7s ease;
  animation: heroZoom 18s ease-in-out infinite alternate;
  background-image: var(--img);
}
.hero-slide:nth-child(1) { --img: url('img/hero-cinematic.webp'); }
.hero-slide:nth-child(2) { --img: url('img/hero-row.webp'); }
.hero-slide:nth-child(3) { --img: url('img/hero-extintores.webp'); }
/* En móvil el zoom (scale) empuja el sujeto fuera de vista: lo desactivamos
   para que la imagen se vea completa y quieta. El zoom solo en desktop. */
@media (max-width: 639px) {
  .hero-slide { transform: none; animation: none; }
}
.hero-slide.is-active { opacity: 1; }
/* Filtros de oscurecido: aplican SIEMPRE (móvil y desktop). */
.hero-slide:nth-child(1) { filter: brightness(.5); }
.hero-slide:nth-child(3) { filter: brightness(.6); }
/* Foto 1: en desktop queda COMO EL CARRUSEL ORIGINAL (cover + center, llena y
   centrada), solo oscurecida. No forzamos tamaño ni posición para no alterar el look. */
@media (min-width: 640px) {
  .hero-slide:nth-child(1) {
    background-size: cover;
    background-position: center;
  }
}
/* Foto 3 (hero-extintores.png): es horizontal y el extintor está a la DERECHA
   de la imagen. cover + position que muestre la zona del extintor corrida al
   centro. Overlay oscuro SOLO a la izquierda (donde va el texto). */
.hero-slide:nth-child(3) {
  background-size: cover;
  background-position: 75% 50%;
}
.hero-slide:nth-child(3)::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(15,20,28,.92) 0%, rgba(15,20,28,.7) 40%, rgba(15,20,28,0) 70%);
}
@keyframes heroZoom { from { transform: scale(1.04); } to { transform: scale(1.14); } }
.hero-scan {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(120deg, rgba(200,16,46,0) 0%, rgba(200,16,46,.35) 50%, rgba(200,16,46,0) 100%);
  background-size: 300% 100%;
  animation: heroScan 5s linear infinite;
  mix-blend-mode: screen;
}
@keyframes heroScan { 0% { background-position: 120% 0; } 100% { background-position: -120% 0; } }
.hero-overlay {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, rgba(15,20,28,.94) 0%, rgba(15,20,28,.62) 46%, rgba(15,20,28,.15) 100%);
}
.hero-grid { position: relative; z-index: 1; display: grid; gap: 28px; align-items: center; max-width: 600px; margin-left: 0; }
.hero .container { margin-left: 0; margin-right: auto; }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: .8rem; font-weight: 700; color: #ffd2da; margin: 0 0 12px; }
.hero h1 { color: #fff; font-size: 2rem; }
.hero-sub { font-size: 1.05rem; color: #e6ecf3; max-width: 40ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 20px 0; }
.hero-trust { list-style: none; padding: 0; margin: 14px 0 0; display: flex; flex-wrap: wrap; gap: 16px; font-size: .9rem; color: #e6ecf3; }
.hero-trust li { white-space: nowrap; }

.hero-badge {
  position: absolute; right: 26px; bottom: 26px; z-index: 2;
  width: 130px; height: 130px; border-radius: 50%;
  background: var(--rojo); color: #fff; font-weight: 900; font-size: .88rem;
  display: grid; place-items: center; text-align: center; line-height: 1.15;
  box-shadow: 0 10px 30px rgba(200,16,46,.5);
  animation: heroFloat 4s ease-in-out infinite;
}
@keyframes heroFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

.hero-dots { position: absolute; left: 50%; transform: translateX(-50%); bottom: 18px; z-index: 3; display: flex; gap: 10px; }
.hero-dots button {
  width: 12px; height: 12px; border-radius: 50%; border: 0; cursor: pointer;
  background: rgba(255,255,255,.45); padding: 0; transition: background .2s, transform .2s;
}
.hero-dots button.is-active { background: #fff; transform: scale(1.25); }

/* ===== Secciones ===== */
.section { padding: 64px 0; }
.section-alt { background: var(--fondo-alt); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 40px; }
.section-head h2 { font-size: 1.8rem; }
.section-lead { font-size: 1.05rem; color: var(--gris); margin: 0; }

/* ===== Steps (Recarga) ===== */
.steps { display: grid; gap: 18px; }
.step {
  background: #fff; border: 1px solid var(--gris-claro);
  border-radius: var(--radio); padding: 22px; box-shadow: var(--sombra);
}
.step-num {
  width: 40px; height: 40px; display: grid; place-items: center;
  background: var(--rojo); color: #fff; font-weight: 800; border-radius: 50%;
  margin-bottom: 12px;
}
.step h3 { font-size: 1.1rem; }
.step p { margin: 0; color: var(--gris); }

.info-card {
  margin-top: 32px; background: #fff; border-left: 5px solid var(--rojo);
  border-radius: var(--radio); padding: 26px; box-shadow: var(--sombra);
}
.info-card h3 { font-size: 1.25rem; }
.info-card p { margin: 0 0 18px; color: var(--gris); }

/* ===== Productos ===== */
.products { display: grid; gap: 22px; }
.product {
  background: #fff; border: 1px solid var(--gris-claro);
  border-radius: var(--radio); padding: 22px; text-align: center; box-shadow: var(--sombra);
}
.product img { width: 100%; max-width: 260px; margin: 0 auto 16px; border-radius: 8px; }
.product h3 { font-size: 1.15rem; }
.product p { color: var(--gris); margin: 0 0 18px; }
.product-note { text-align: center; margin-top: 28px; color: var(--gris); }

/* ===== FAQ / Normativas ===== */
.faq { max-width: 820px; margin: 0 auto; display: grid; gap: 12px; }
.faq details {
  background: #fff; border: 1px solid var(--gris-claro);
  border-radius: var(--radio); padding: 4px 18px; box-shadow: var(--sombra);
}
.faq summary { cursor: pointer; font-weight: 700; padding: 14px 0; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--rojo); font-size: 1.4rem; font-weight: 800; }
.faq details[open] summary::after { content: "–"; }
.faq p { margin: 0 0 16px; color: var(--gris); }

/* ===== Contacto ===== */
.contact-grid { display: grid; gap: 32px; }
.contact-data { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
.contact-data li { padding-left: 4px; }
.contact-form {
  background: #fff; border: 1px solid var(--gris-claro);
  border-radius: var(--radio); padding: 26px; box-shadow: var(--sombra);
  display: grid; gap: 16px; grid-template-columns: 1fr;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-weight: 600; font-size: .9rem; }
.field input, .field select, .field textarea {
  padding: 12px 14px; border: 1px solid var(--gris-claro); border-radius: 8px;
  font-family: inherit; font-size: 1rem; color: var(--gris-oscuro);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--rojo); box-shadow: 0 0 0 3px rgba(200,16,46,.15);
}
.form-error { color: var(--rojo); font-weight: 600; margin: 0; }
.form-note { font-size: .82rem; color: var(--gris); margin: 0; }

/* ===== Mapa ===== */
.map-section { background: var(--fondo-alt); }
.map-wrap { position: relative; border-radius: var(--radio); overflow: hidden; box-shadow: var(--sombra); border: 1px solid var(--gris-claro); }
.map-wrap iframe { width: 100%; height: 360px; border: 0; display: block; }
.map-cta { position: absolute; left: 16px; bottom: 16px; box-shadow: var(--sombra); }

/* ===== Footer ===== */
.site-footer { background: var(--gris-oscuro); color: #cbd5e1; padding: 44px 0 0; }
.footer-inner { display: grid; gap: 28px; }
.footer-brand { color: #fff; font-weight: 800; font-size: 1.1rem; margin: 0 0 8px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 14px; }
.footer-nav a { color: #cbd5e1; font-weight: 600; }
.footer-nav a:hover { color: #fff; }
.footer-contact p { margin: 4px 0; }
.footer-social { margin-top: 10px; display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
.footer-social a { color: #fff; font-weight: 700; display: inline-flex; align-items: center; gap: 7px; line-height: 1; }
.footer-social a:hover { color: #ffd2da; text-decoration: none; }
.ig-ico { flex: 0 0 auto; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 30px; padding: 18px 0; text-align: center; font-size: .85rem; color: #94a3b8; }
.footer-bottom a { color: #cbd5e1; }

/* ===== CTA flotante ===== */
.wa-float {
  position: fixed; right: 18px; bottom: 18px; z-index: 60;
  display: flex; align-items: center; gap: 8px;
  background: #25D366; color: #fff; font-weight: 700;
  padding: 12px 18px; border-radius: 999px; box-shadow: 0 6px 18px rgba(0,0,0,.25);
}
.wa-float:hover { text-decoration: none; color: #fff; transform: translateY(-2px); }
.wa-float-ico { font-size: 1.2rem; }

/* ============================================================
   Breakpoints
   ============================================================ */
@media (min-width: 640px) {
  .steps { grid-template-columns: 1fr 1fr; }
  .products { grid-template-columns: 1fr 1fr; }
  .contact-form { grid-template-columns: 1fr 1fr; }
  .field-full { grid-column: 1 / -1; }
  .hero .container { padding-left: 9vw; }
}

@media (min-width: 900px) {
  .site-nav { display: flex; }
  .nav-toggle { display: none; }
  .hero { padding: 80px 0 90px; }
  .hero h1 { font-size: 2.6rem; }
  .hero-grid { max-width: 820px; }
  .section { padding: 88px 0; }
  .section-head h2 { font-size: 2.2rem; }
  .steps { grid-template-columns: repeat(4, 1fr); }
  .products { grid-template-columns: repeat(3, 1fr); }
  .contact-grid { grid-template-columns: 1fr 1.1fr; align-items: start; }
  .footer-inner { grid-template-columns: 1.4fr 1fr 1fr; }
}

/* Menú móvil abierto */
.site-nav.open { display: flex; flex-direction: column; gap: 0; position: absolute; top: 64px; left: 0; right: 0; background: #fff; padding: 10px 20px 18px; border-bottom: 1px solid var(--gris-claro); box-shadow: var(--sombra); }
.site-nav.open a { padding: 12px 0; border-bottom: 1px solid var(--gris-claro); }
.site-nav.open .nav-cta { border-radius: 999px; text-align: center; margin-top: 8px; }

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}